U. Nurhasan, A. Prasetyo, G. Lazuardi, E. Rohadi, and H. Pradibta, “Implementation IoT in System Monitoring Hydroponic Plant Water Circulation and Control”, IJET, vol. 7, no. 4.44, pp. 122–126, Dec. 2018, doi: 10.14419/ijet.v7i4.44.26965.